* Update README.cn.md

* Modify the formula of lstm

Fixed issue with train_dyn_rnn.py training report nan

update coding_guideline

* fix reader

* update readme

Modified the bug in understand_sentiment
icafe : http://newicafe.baidu.com/issue/76263402/show?cid=5&spaceId=23205&from=email&noticeStatistics=23969354

fix : http://newicafe.baidu.com:80/issue/DLTP-1929/show?from=page， fix book code is not compatible with python3

Modify the code to support python3: fix problem in book05 doc and code

fix link and some mistake in 01.fit_a_line and 09.gan

* modified reademe

Modify the location of test_program definition

mv import __future to begging of file 

use numpy.asarray as data initializer

* replace book url

* replace develop to 1.5

* fix wrong url

* test=develop

* merge

* recrurent to recurrent

* test=develop

* merge

* recrurent to recurrent

* test=develop

* merge

* recrurent to recurrent

* test=develop

* merge

* fix typo in image classification

* fix formula

* Fix the error in README of machine_translation

* Fix map func to adapt to python3 in machine_translation

* Rewrite machine_translation with attention model.

* Replace formula in machine_translation with picture

* change img

* change img

* add env note in image classification

* fixed format

* fixed format

* fixed format